Personal comments

With years of experience, any analyst will be enticed to modify details in the design of the instrument he or she uses and will be able to recognise the origin of small troubles. Here is a list of points to verify in case of non-satisfactory results and of small changes in the analytical instrument. 

The HTCO method, amended with improvements originating in a decade of experience of many analysts, now seems to be a convenient and reliable way to determine DOC in seawater. Vertical profiles published recently for different parts of the world s ocean (Fig. 15-6) exhibit comparable trends and similar concentration ranges Carlson et al., 1994 Carlson and Ducklow, 1995 Peltzerand Hayward, 1996). 

Most of the differences observed in results have their origin in analytical conditions, not in the method itself Cauwet et al., 1997). Supposed very high values could mostly be traced to high blanks that were not well estimated. After several recent comparisons between HTCO and wet methods, it is unlikely that these two techniques give very different results. The methods are not the sources of the discrepancies, it is more likely that the analysts are. Most differences between old and new data were due to poor blank estimations and inferior stability of instruments response Sharp, 1997). The care to be taken and the difficulty asso- 

15 Determination of dissolved organic carbon and nitrogen by high temperature combustion 

Physical methods, such as ultraviolet (UV) absorption, are attractive in that they are usually simple, readily automated and may provide real-time data. However, no suitable single physical property is common to all organic compounds. Furthermore, UV absorption may suffer interference from dissolved inorganics (bromide and nitrate see Ogura and Hanya, 1966) and particulate material. As a consequence it is necessary to resort to chemical methods. The oxidation of the organic material and subsequent determination of the produced carbon dioxide thus seems the most logical approach to DOM analysis and has been generally adopted. The oxidation procedure itself becomes the critical issue in the consideration of the available alternative methods. 

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R H. Citrin. J. Phys. Coll. C8,437,1986. Reviews all SEXAFS work up to 1986, with personal comments by the author. 

The authors thank their many colleagues and friends in the industrial catalytic community for their willingness to give advice and to share the invaluable information cited as personal comments in the references. 

SCHEME 14.5 Different synthetic routes for the preparation of metallacyclocumulene (5). Note The perception of strain energy in the cyclocumulene is so high that initial attempts at publishing the experimental single crystal data of the metallacyclocumulene (5) met with strong resistance from referees (personal comments from Prof. U. Rosenthal). Characterization of the structure computationally helped in gaining acceptance of the structure. 

Lebl, M., Parallel personal comments on "Classical" papers in combinatorial chemistry, /. Comb. Chem., 1999, 1, 3-24. 

I do have a few personal comments to add about Nubain. First that I have personally never tried it. Second that I feel this is an evil substance when utilized out side of the intended medical purpose. Last is that I have not seen a single individual who gained any actual benefit from it, but some that claimed they did while looking like shit. 

For individuals trying to learn more about Chemical Process Safety, a few good books should be strongly considered. The following books are all very useful, and it is hard to say which is more important than another. A few personal comments often follow the description. Prices were added to give a relative idea of the cost, but price increases and discounts are probable. 

Many of the newer process safety titles are aimed at very specific subjects and offer a great deal of detail. The books and other references suggested here are of a more general nature or have a broader impact. These references appear in alphabetical order by author or alphabetically by tide if the author is not listed. Most of the listed books are followed with a personal comment. 

Personal comment We later learned that R. Mason, who had helped in our earlier bacterial studies, had sent some m-dichlorodiammineplati-num(II) to a friend to test for anticancer activity in 1966. His friend overdosed the animals, they all died, and he reported back that the drug was too toxic There must surely be a lesson somewhere in this story.]... 

Take comprehensive interview notes that document the candidates verbal and nonverbal responses. Use your notes later to help determine why you did, or did not, select a candidate. Besides refreshing your memory of each applicant at the end of the interview process, notes are important documen-tahon that you conducted a defensible interview, asking comparable questions of each candidate and asking job-related queshons only. Be careful personal comments about an applicant s ethnicity, appearance, personal habits, or personality, for example, are both inappropriate and indefensible if there is any subsequent legal achon. 

A sniper tends to make nasty personal comments in public. You know these people — in a middle of a meehng they shout out an inappropriate remark about the speaker. If you are the unfortunate speaker, you may lose your train of thought and feel embarrassed about the comment. To deal with this type, stop speaking, look the sniper directly in the eye, and ask, What does your comment have to do with what we are talking about ... 

For review on fathers of the field, see Michal Lebl s Parallel Personal Comments on Classical Papers in Comhinatorial Chemistry, J. Comb. Chem. 

Kava, 17, 39, 155-58 Ketaject, 139-40 Ketalar, 139-40 Ketamine, r6, 136 di.scussed, 139-40 first-person comments on, 218- 9... 

Look-alike drugs, 49-50, 72 Lorazepam (Ativan), 74 Love drugs, 108, zro LSD [lysergic acid diethylamide). 6, 16, 33, 101, ro6, 162 discussed, 9 5-97 first-person comments on, 208,... 

Valerian, 155 Valium, 34, 74, 75, 7 -77 first-person comments on, 105-6 medical applications of, 16 Vaporal, ny-30 Varnish, 116... 

Your own ideas. Your notes may also contain your personal comments (judgments, flashes of brilliance, notions of how to use something you ve just read, notes to yourself about connections between sources, questions, and so forth) that will aid you in the writing of your paper. In handwritten notes, you might jot these down in a different-colored pen or put them in brackets that... 

I would like to conclude with a few personal comments. 

To introduce a personal comment, it is surprising that this part of the work is considered as a menial task and every time, when visiting a laboratory, I asked to see how the crystals were cut, I felt that I was being indiscreet. However, any error introduced at this stage will entail errors in the electrochemical results. 

The first edition of the laboratory handbook Diinnschicht-Chromatographie edited by E. Stahl was pubhshed by Springer in 1962. Many subsequent publications can now be regarded as obsolete because of the developments in methodology and technique. I hope that the personal comments on the publications listed below will help the user in his or her choice. 

Personal comments are inappropriate. Assertions that the work is not original without literature citations to substantiate the claim are useless. 

I am." She stood up and pulled her jacket off the back of the chair. "I m going down to the police station, see if I can get a personal comment from that good man Chief Inspector Latham on the crisis facing his little fiefdom."... 

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